/Engine/Plugins/Experimental/PlatformCrypto/Source/PlatformCryptoOpenSSL/Public/EncryptionContextOpenSSL.h
Sign a message with RS256.
Whether the sign operation was successful
bool DigestSign_RS256 ( const [TArrayView](API\Runtime\Core\Containers\TArrayView)< const uint8 > Message, [TArray](API\Runtime\Core\Containers\TArray)< uint8 > & Signature, FRSAKeyHandle Key )